Kobo has It Can’t Happen Here by Sinclair Lewis in DRM-free ePub format for $0.99.
Link: click here .
"Written during the Great Depression, when the country was largely oblivious to Hitler’s aggression, it juxtaposes sharp political satire with the chillingly realistic rise of a president who becomes a dictator to save the nation from welfare cheats, sex, crime, and a liberal press."
Currently $8.99 for Kindle at Amazon (4.5 stars with 365 reviews).